/Engine/Plugins/Runtime/AR/AzureSpatialAnchors/Source/AzureSpatialAnchors/Public/IAzureSpatialAnchors.h
UAzureSpatialAnchorsLibrary::LoadCloudAnchor/ FAzureSpatialAnchorsLoadCloudAnchorAction is the most complicated.  It creates a watcher then registers for the delegates so it can handle AnchorLocated and AnchorLocateCompleted events.
class IAzureSpatialAnchors : public [IModularFeature](API\Runtime\Core\Features\IModularFeature)